Go to products and add a new product now you will get a new field in product data known as Custom Price, in this field you can add the second price you want to show on your website as well.

You will get price of your product in two different currencies you can change the symbol of second currency by changing ‘$’ with your desired currency in $custom_currency_symbol = ‘$’; in the code, you have inserted in functions.php

Note: You need to add the price of the other Currency yourself.

Also, Checkout will be proceed only with the default Currency. The Currency, We added is only for display purpose.